this might seem simple but i don't understand if you can please help

FACTOR
x^3-7x^2+14x-8
thanks for your help

rearrange it.

x^3-8 -7x(x-2)

The first term is a difference of cubes, and you have a formula for those. Notice in the second, you have one of the factors of the difference of cubes....now you have a common factor.